Question

看看这道英语题

Bob never does his homework ______ . He makes lots of mistakes.
A.so careful as
b.as more carefully as
c.so carefully as
d.as careful as
回答时把理由说出来

Answer 1

C

追问

为什么呢？有so .....as 有这种句型，什么意思呢？

追答

so....as 是与as....as一样的意思。不过一般情况下so……as是用在否定句中，有些情况下两者通用。这一题carefully是修饰动词does，所以必须用副词—ly形式。不可以用careful（是形容词），又因为as……as已经含有比较级的意思了，所以不用more。排除得C